Characters not displaying - showing as squares (Chinese/Thai/Arabic)

If you receive emails with Chinese/Thai/Arabic.. characters, sometimes they don't get displayed properly in Hiri on Linux. Instead, they are rendered as squares like so:

To fix this, you'll first have to install additional font packages for your system which provide those characters. Additionally, if you're running Hiri as snap, you might need to update your snap system.

Make sure you have the fonts

This varies between systems, so you'll have to consult the documentation for your Linux distribution. For example, to install Chinese font: